ISO 13765-1:2004

INTERNATIONAL ISO
STANDARD 13765-1
First edition
2004-06-01
Refractory mortars —
Part 1:
Determination of consistency using the
penetrating cone method
Mortiers réfractaires —
Partie 1: Détermination de la consistance par la méthode de pénétration
d'un cône
Reference number
©
ISO 2004
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ii ISO 2004 – All rights reserved

Foreword
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ISO 13765-1 was prepared by Technical Committee ISO/TC 33, Refractories.
ISO 13765 consists of the following parts, under the general title Refractory mortars:
— Part 1: Determination of consistency using the penetrating cone method
— Part 2: Determination of consistency using the reciprocating flow table method
— Part 3: Determination of joint stability
— Part 4: Determination of flexural bonding strength
— Part 5: Determination of grain size distribution (sieve analysis)
— Part 6: Determination of moisture content of ready-mixed mortars
©
ISO 2004 – All rights reserved iii

.
iv
INTERNATIONAL STANDARD ISO 13765-1:2004(E)
Refractory mortars —
Part 1:
Determination of consistency using the penetrating cone
method
1Scope
This part of ISO 13765 describes a method for the determination of the consistency of refractory mortars using
a penetrating cone.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 8656-1, Refractory products — Sampling of raw materials and unshaped products — Part 1: Sampling
scheme
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
refractory mortar
finely ground refractory composition which, generally after the addition of water or other specified mixed liquid,
is used for laying and jointing bricks
NOTE 1 The refractory components are related to the quality of the bricks with which the composition is to be used.
NOTE 2 In some cases the mortar may be supplied in a ready-mixed state.
3.2
consistency of refractory mortars
measure of the viscosity of the material in its ready-to-use state
4 Principle
The consistency of a refractory mortar is assessed by the depth of penetration of a specified cone into the
sample.
5 Apparatus
5.1 Consistency determination device, consisting of a penetrometer, a cone and a container for the sample.
The penetrometer is shown in Figure 1. The requirements for the cone and the sample container are given in
5.1.1 and 5.1.2.
©
ISO 2004 – All rights reserved 1

Key
1 gauge plate
2 toothed lever
3button
4 drop rod
5 reflector
6 standard cone
NOTE Reflecor may or may not be used.
Figure 1 — Penetrometer
5.1.1 Cone.
The cone shall be made of brass or corrosion-resistant steel
...